Home / 2,390.47-3,298.85-1,342.54

Finding the Fourth Proportional to 2,390.47, 3,298.85 and 1,342.54

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Solution

The fourth proportional to 2,390.47, 3,298.85 and 1,342.54 is: 1,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.47 : 3,298.85 = 1,342.54 : x
  2. Step 2: Convert to fraction form
    2,390.47/3,298.85 = 1,342.54/x
  3. Step 3: Cross multiply
    2,390.47x = 3,298.85 × 1,342.54
  4. Step 4: Simplify right side
    2,390.47x = 4,428,838.08
  5. Step 5: Solve for x
    x = 4,428,838.08/2,390.47
  6. Step 6: Final answer
    x = 1,852.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.